Hydrocarbon incandescent lamp.



Patnted Oct. 3, I899. F. c. DE-LLDNE. HYDROCABBON INGANDESCENT LAMP.

(Applicatioi; filed Jan. 26 1899.\

' (No Model.)

5 Farms 00 PKOTO-L m N'ITED STATES PATENT FFIQE.

FRED C. DELLONE, OF CHICAGO, ILLINOIS, ASSIGNOR TO JOSEPH E. BONNER,

OF NE\V YORK, N. Y.

HYDROCARBON INCANDESCENT LAMP.

SPECIFICATION forming part of Letters Patent No. 634,432, dated October 3, 1899.

Application filed January 26, 1899. Serial No. 703,483- (No model.) i

To all whom it may concern.-

Be it known that I, FRED C. DELLONE, acitizen of the United States, residingat Chicago, in the county of Cook and State of Illinois,

have invented certain new and useful Improvements in Hydrocarbon Incandescences Lamps; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the ac- IO companying drawings, forming a part of this specification.

This invention relates to that type of hydrocarbon incandescencelamps in which the hydrocarbon vapor generator is heated by the flame of the lamp-burner and in which the vapor from such generator is discharged into the open end of a commingling-tube, which extends to and has communication with the combustion-chamber of the burner to supply the same with a mixture of airand combustible vapor.

The object of the present improvement is to provide a simple, durable, and efficient formation and arrangement of the vapor-generator for such type of lamps and in which the generation of the gas is effected in'a very perfect and uniform manner, all as will hereinafter more fully appear, and be more particularly pointed out in the claims. I attain such object by the construction and arrangement of parts illustrated in the accompanying drawings, in which- Figure l is a side elevation of a hydrocarbon incandescence-lam p, illustrating the pre- 5 ferred arrangement of the present improvement in connection with the other usualparts of the lamp; Fig. 2, a longitudinal sectional elevation of the vapor-generatorin a detached condition; Figs. 3 and 4, enlarged detail cross- 40 sections of the same at lines 00 an and m on,

respectively, Fig. 2.

Similar numerals of reference indicate like parts in the several views.

Referring to the drawings, 1 represents the 5 incandescent burner of the type usual to the present class of lamps and commonly known as the Welsbach burner.

2 is the commingling tube or conductor, in which the supply of atmospheric air and combustible gas are commingled and supplied to the burner lto effect an incandescence of the mantle thereof in the usual manner.

3 is the elevated supply tank or reservoir, containing the supply of gasolene or other volatile hydrocarbon.

4 is the liquid-hydrocarbon-supply pipe, extending from the lower end of the reservoir 3 to the vapor-generator 5.

In the construction shown in the drawings as illustrative of the present invention the lamp is of the hanging type, and in such construction the supply-pipe 4 and the commingling tube or conductor 2 are rigidly secured together, so as to constitute the support for the burner, as usual in such class of lamps, there being no communication, however, between the two tubes.

6 is a needle or other suitable valve controlling communication between the liquidhydrocarbon -supply pipe 4: and the vapor- 7o generator 5.

'lhe vapor-generator will preferably be of the usual U or return-bend form shown in the drawings, with its upper and longer member 7 screwing into the side of the vertical supply-pipe 4 in line with the controlling-valve (5, while the lower end and shorter member 8 is provided at its free end with a jet or tip 9, that is in line with the open upper end of the commingling tube or conductor 2, as illustrated in Fig. 1.

The vapor-generator 5'will usually be arranged in a horizontal plane above the burner l in order to utilize the heat therefor in providing a supply of combustible vapor for sup- 85 porting the combustion of the lamp. v

In the present improvement the vapor-generator will be provided with a filling of wires 10, arranged within the bore thereof, and in my preferred construction, as shown in Fig. e 2, the end of such wires next adjacent to the needle or other valve 6 will not extend to the end of the upper member 7 of the vapor-generator, so as to leave at such end a small receiving-chamber ll. at such point, the purpose 5 of which is to afford a limited supply of, liquid hydrocarbon for the vapor-generator independent of the direct flow thereof through the needle-valve aforesaid and by this means prevent any fluctuations of the light due to I00 an irregular Ilow of hydrocarbon through such valve and which is commonly caused by impurities in such liquid partly or wholly clogging the valve for a time.

Intermediate of its length the lower member 8 of the vapor-generator is provided with a vapor superheating or firing chamber 12, that is formed by an omission of the wire filling at such point. Said chamber 12 will preferably be arranged in the vapor-generator at the point thereof that is immediately above the burner 1.

To the rear of the outlet jet or tip 9 of the lower member 8 of the vapor-generator is formed a pressure-supply chamber 13 for the combustible gas, the purpose of which is to cause an even and uniform discharge of such gas through the small orifice of the aforesaid outlet jet or tip 9. Such chamber 13 will be of some length, and at its end next adjacent to the tip will be provided with a battle-plate or disk 1-l-, preferably formed by a spiral-button formation of the end of one of the fillingwires 10, that is extended forward for such purpose, as clearly illustrated in Figs. 2 and 4 of the drawings.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a hydrocarbon incandescence-lamp, the combination with a burner, and a commingling tube or conductor, of a supply-tank, a supply-controlling valve, a vapor-generating tube or chamber, and a filling of wires arranged in said generating-tube, said wire filling being interspaced intermediate ofits length to form a superheating-chamber in the generator-tube at its point of greatest exposure to the heat of the burner, substantially as set forth.

2. In a hydrocarbon incandescence-lamp, the combination with a burner, and a commingling tube or cond uctor, of a supply-tank, a supply-controlling valve, a vapor-generating tube or chamber, and a filling of wires arranged in said generating-tube, the said generating-tube having an expansion-chamber next adjacent to its outlet end, substantially as set forth.

3. In a hydrocarbon incandescence-lamp, the combination with a burner, and a commingling tube or conductor, of a supply-tank, a supply-controlling valve, a vapor-generating tube or chamber, a filling of wires arranged in said generating-tube, the said generating-tube having an expansion-chamber next adjacent to its outlet end, and a baflieplate or disk carried by the wire filling and arranged transversely in said chamber to form a contracted annular passage for the gas, substantially as set forth.

In testimony whereof witness my hand this 21st day of January, 1899.

FRED C. DELLONE.

In presence of- ROBERT BURNS, HENRY Mon. 

